Late!!!!

DEE

I have been mostly regular with all the girls at work. But this month my BF moved in with me and we kept track to make sure we missed ovulation. Well... needless to say the girls at work cycles has came and gone and are coming back in 2 weeks ! Even my best friend has had her cycle. 2 negative pregnancy test later still not a drop I am officially 3weeks late. Should I wait another 2weeks?